Pneumatic, or fluid, cleaning device.



I. E IVIOTE 6L L. C. KING. PNEUMATIC, 0R FLUID, CLEANING DEVICE.

APPLlcATloN FILED 1m30. 1915.

1 1 99,20 1 Patented Sept. 26, 1916.

UNITED STATES, .PATENT opinion.-

JOHN EDGAR. MOTE, OF INDIANAPOLIS, AND LEWIS C. KING, OF RICHMOND, INDIANA.

Specification of Letters Patent.

Patented Sept. 26, 1916.

Application led January 30, 1915. Serial No. 5,198.

To aZZfwwm t may concern Be it known that we, JOHN EDGAR Mo'rn, a citizen of the United States, residing in the city of Indianapolis,'in the county of Marion and State of Indiana, and LEWIS C. KING, acitizen of the United States, residing in the city of Richmond, in the county of Wayne and State of Indiana, have invented a new and useful Improvement in Pneumatic, or Fluid, Cleaning Devices, of which the following is a full, clear, and comprehensive specification and exposition, thc same being such as will enable others to make and use the same with exactitude.

This invention relates to pneumatic, or fluid, cleaning devices of the kind known as the blower and suction type, wherein a current of compressed-air, or fluid, is conducted into the device and distributed from small nozzles, Vforming jets of great intensity, and then forming suction as the air escapes from the device into the dust retaining receptacle connected therewith.

The object of our invention, broadly speaking, is to produce a pneumatic or fiuid cleaning device to be actuated by compressed air, gas or fluid, which will be strong and durable in construction, easily handled, operated and controlled, and which can be manufactured and sold at a comparatively low price.

More particularly stated our object is to provide a pneumatic or fluid cleaning device wherein one or more jets of air or fluid are provided to loosen up and agitate the dust; having means whereby the dust is collected partly by suction; and having means for conveying the dust to a receptacle connected with the device.

Other minor objects and particular advantages ofour invention will be brought out in' the course of the following description, and that which is new will be correlated in the appended claims.

The essential features of our invention comprise a construction having a cleaning chamber; pneumatic' means for lifting the dust into the cleaning chamber; means to produce a central suction from said chamber; means to form a passageway surrounding the first named chamber, with a peripheral slot connecting the base of the cleaning chamber with the passageway; means for Greeting suction through the said slot into the passageway; and a compressed air chamber located between the cleaning chamber and said passageway.

The preferred means for carrying out the principles of our invention in a practical manner is shown in the accompanying drawings, in which- Figure l is a side elevation of the entire device. Fig. 2 is a vertical Central section, as taken on the line 2--2 of Fig. 4. Fig. 3 is abottom plan view of the device. Fig. 4 is a top plan View of the device, and Fig. 5 shows a slightly modified arrangement of the construction.

Similar indices denote like out the several views.

As shown in the drawings the body of our invention is in the nature of a head, formed square at the bottom and tapering parts throughupward and terminating ina round portion at the top, and this head is divided, interiorly, into three substantially equal chambers: The lower cleaning chamber A; the central or compressed air chamber B; and the outer and upper outlet passageway C, all of which are shown most clearly in Fig. 2, and they are formed concentric with relation to each other, substantially as indicated.

vThe cleaning chamber A is entirely open at the bottom, and its top is formed by the upwardly and inwardly disposed inner partition l, which extends to the downwardly tapering, funnel-like spout 2, which terminates at its lower end in the downwardly directed nozzle 3. The space between the partition l and around the spout 2 forms the cleaning chamber A.

Extending upward .and inward from the lower edge ofthe partition 1, and secured thereto, is the partition 4, which extends upward higher than the partition l, its upper edge being connected to the horizontal top 5, the latter being located directly above the spout 2. The space'between the partition l, the partition 4, the top 5, and the spout 2 forms the compressed air chamber B.

Extending around the partition 4, spaced therefrom, and extending upward and inward from near the lower edge of the partition 4, is the jacket 6, with its upper end merging into the round collar 7, which 4is directly above and concentric with. the top and the spout 2. rIhe space between the partition 4 and the jacket 6 and above the top 5, forms the suction passageway C.

Extending up vertically from. the junc- 5 ture of the partition 1 with the spout 2 are the four comparatively large conduits S, 9, 10 and 11, whose lower ends open into vthe cleaning chamber A below the partition 1, passing upwardly through the compressed air chamber B, and through the top 5, with their upper ends opening into the passageway C, as shown in Fig. 2.

ln the lower' end of each of the conduits is located a discharge nozzle, 12, 13, 14 and 15, respectively. The said nozzles extend out from the sides of the spout 2, and then curve upwardly, with their ends opening into the lower portions of the respective conduits and centrally thereof, thereby establishing communication from the interior of the chamber B, through the interior of the conduits, with the interior of the passageway C.

The corners oic the lower edges of thepar- 5 tition 4 and the jacket 6 are connectedby the bars 16, 17, 18 and 19, the lower edges of the partition 4 and the jacket 6 lbeing' spaced apart forming a slot 20 therearound, thereby connecting the lower parts ol" the chamber A with the passageway C, as shown in Fig.

Extending from the junction of vthe partitions 1 and 4 are a plurality of equispaced U-shaped nozzles 21, which connect 5 the interior of the chamber B with the interior of the passageway C, the said nozzles being adapted to discharge upwardly hrough the slot 20, substantially as indicated in Fig. 2.V rNumeral 22 denotes the inlet pipe for the compressed air, gas or fluid, and it is disposed through the ljacket 6 and it opens through the partition 4 into the interior of r the chamber B, the outer end of said pipe d being adapted to be connected by a flexible tube, or otherwise, with a. supply of compressed air, gas or fluid. Fitting onto the collar 7 is the pervious dust-bag `forming the collection chamber 23.

Operation: It will be apparent that it compressed-air, or its equivalent be admitted through the pipe 22 that a jet of air will be directed downward from the nozzle 3, which will blow the dustloose from the bottom of a box, case, or other receptacle, orti-om the floor or carpet, or from whatever the device may be resting upon, or disposed over, thereby causingthe dust to be agitated in the cleaning chamber. The upwardly directed jets from the nozzles 12, 13, 14 and 15 will -form primary jets which will draw with them, .by suction, air from around the lower ends ofthe conduits, and Aforce the dust laden Vair upward through the conduits and deliver it into the upper part of the passageway C as secondary jets of great volume. The discharge of the secondary jets from the conduits will produce suction from around the conduits and from the `passageway C', thereby carrying the dust` laden air Vfrom theupper-.portion of said passageway and from the cleaning chamber and directing it upward into the bag 23, which latter will retain the dust and allow the air to pass lout therethrough.

ln some instances that portion of pas-A sageway C below the collar 7 may be-l dispensed with, as in Fig. 5; also the nozzles 21, in which instance the upper end of the partition 4 will be connected Ytov the lower edge of the collar 7, thereby employing-'only the central suction from the collection chamber.

In some instances ive-provide means for the device to draw from a larger extent of surface than. that above described. This is accomplished by the addition of a lfabric hood 24, shown in Fig. 1. The edges of this Y hood are secured to a wire frame-25, which retains the hood in spread-out position, there being a central opening through the hood t0 receive the head or body of the device as shown.

The inner edge of the hood may be retained tightly in contact with the head by a wire band 26, as shown in Fig. 1.

The i'rame 25 is supported by the arms 27, which are connectedl thereto and extend upward and inward, with their inner nends hooked into the eyelets 28, thereby assem` bling the parts as shown in Fig. 1.

From the above it will be readilyjseen that when used in either of the ways suggested that the device will be very eHicient, as the blast or jet from the nozzle 3 will be such as to agitato and loosen u p all of the particles of dust and cause them to rise into the chamber A, from which they will `be drawn up into the passageway by powerful suction and by the volume of air discharged from the nozzle 3 which manifestly will acg complish the objects stated.

1We have found that this device is most notably eiicientin cleaning type-cases in printing oiiices, as the jet of air from the nozzle 3 will be such as to thoroughlyclean each compartment when the jet is directed thereinto,

lVe vdesire that it be understood that we are not to be limited to a single agitator, or disturber jet, as the jet from the nozzle 3, as the device may be constructed with a. pluralityof nozzles, asin Fig., 5, wherein the spout 2 is dispensed with and a plurality of nozzles, :c and y, extend down from the bottom e of thecha-mberB. These nozzles extend down and then curve inward toward each other `and discharge at'or near ariocal point therebelow, as indicated..

Also in the modified form shownfinl Fig; 5 the nozzles 12, :13, 14 and 15 are replaced by the nozzles c and CZ, which operate in the same manner as the former, the only difference being that their connection with the compressed air chamber B is somewhat different. i

IVe desire that it be understood that various changes may be made in the form and the arrangement of the various details herein set forth without departing from the spirit of our invention and without sacrificing any of the advantages thereof.

Having now fully shown and described the principles and the operations of our invention, what we claim and desire to secure by Letters Patent of the United States, is

l. A pneumatic cleaning device having a head containing` a cleaning chamber and a suction passageway therearound, a conduit extending from the cleaning chamber and directed into the suction passageway, and a nozzle directed into the open end of said conduit to deliver a jet through said conduit.

2. A pneumatic cleaning device having a body containing a cleaning chamber open at one side and having a suction passageway surrounding the cleaning chamber, centrally located means for directing compressed air to agitate dust and raise the dust laden air into the cleaning chamber, means for producing a central suction from said chamber into said passageway, and means for producing a peripheral suction from said chamber into said passageway.

3. A pneumatic cleaning device comprising a head having a cleaning chamber with one side open to the surface to be cleaned and having a passageway adjoining the cleaning chamber, a nozzle for directing' compressed air against the surface to be cleaned, conduits extending up from the cleaning chamber into said passageway, nozzles directed into the conduits for producing suction from the cleaning chamber, there being a peripheral slot extending'around the head and communicating with said passageway, and nozzles directed upward to produce suction through said slot into said passageway.

4. A pneumatic cleaning device comprising a head having a cleaning chamber, a collection chamber for receiving dust laden air, and a suction passageway with a plurality of openings connecting the passageway to the cleaning chamber, means for agitating dust on the surface to be cleaned, and means located entirely within the head for creating suction from the cleaning chamber to the collection chamber.

5. A pneumatic cleaning device compris-V ing a head having a cleaning chamber opening downward, a compressed air chamber located above the cleaning chamber, and having a collection chamber located above the compressed air chamber, a plurality of nozzles for forming air jets leading from the compressed air chamber and adapted to produce suction from the cleaning chamber into the collection chamber.

6. A pneumatic cleaner comprising a head having a cleaning chamber opening downward, and a suction passageway in said head, a compressed air chamber adjoining the cleaning chamber, a collection chamber connected to the suction passageway, a plurality of nozzles leading from the compressed air chamber and adapted to produce central suction from the cleaning chamber into said suction passageway, and a plurality of nozzles adapted to produce peripheral sucti'on from the cleaning chamber into the said suction passageway.

7. A pneumatic cleaning device comprising a body having a cleaning chamber therein opening downward, a passageway surrounding the cleaning chamber, a nozzle for forming a-downwardly directed jet for raising dust upward into the cleaning chamber, a plurality of upwardly directed nozzles for discharging compressed air into the lower portion of said passageway to create suction from the cleaning chamber upward through said passageway. f

In testimony whereof we have hereunto subscribed our names to this specification in the presence of two subscribing witnesses.

JOHN EDGAR MOTE. LEWIS C. KING. Witnesses:

Ro'r. W. RANDLE, R. E. RANDLE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

